| Mathbox for Thierry Arnoux |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > submateqlem2 | Structured version Visualization version GIF version | ||
| Description: Lemma for submateq 34319. (Contributed by Thierry Arnoux, 26-Aug-2020.) |
| Ref | Expression |
|---|---|
| submateqlem2.n | ⊢ (𝜑 → 𝑁 ∈ ℕ) |
| submateqlem2.k | ⊢ (𝜑 → 𝐾 ∈ (1...𝑁)) |
| submateqlem2.m | ⊢ (𝜑 → 𝑀 ∈ (1...(𝑁 − 1))) |
| submateqlem2.1 | ⊢ (𝜑 → 𝑀 < 𝐾) |
| Ref | Expression |
|---|---|
| submateqlem2 | ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ∧ 𝑀 ∈ ((1...𝑁) ∖ {𝐾}))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fz1ssnn 13610 | . . . . . 6 ⊢ (1...(𝑁 − 1)) ⊆ ℕ | |
| 2 | submateqlem2.m | . . . . . 6 ⊢ (𝜑 → 𝑀 ∈ (1...(𝑁 − 1))) | |
| 3 | 1, 2 | sselid 3929 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℕ) |
| 4 | 3 | nnge1d 12308 | . . . 4 ⊢ (𝜑 → 1 ≤ 𝑀) |
| 5 | submateqlem2.1 | . . . 4 ⊢ (𝜑 → 𝑀 < 𝐾) | |
| 6 | 4, 5 | jca 521 | . . 3 ⊢ (𝜑 → (1 ≤ 𝑀 ∧ 𝑀 < 𝐾)) |
| 7 | 2 | elfzelzd 13579 | . . . 4 ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| 8 | 1zzd 12649 | . . . 4 ⊢ (𝜑 → 1 ∈ ℤ) | |
| 9 | submateqlem2.k | . . . . 5 ⊢ (𝜑 → 𝐾 ∈ (1...𝑁)) | |
| 10 | 9 | elfzelzd 13579 | . . . 4 ⊢ (𝜑 → 𝐾 ∈ ℤ) |
| 11 | elfzo 13716 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 1 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑀 ∈ (1..^𝐾) ↔ (1 ≤ 𝑀 ∧ 𝑀 < 𝐾))) | |
| 12 | 7, 8, 10, 11 | syl3anc 1398 | . . 3 ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ↔ (1 ≤ 𝑀 ∧ 𝑀 < 𝐾))) |
| 13 | 6, 12 | mpbird 260 | . 2 ⊢ (𝜑 → 𝑀 ∈ (1..^𝐾)) |
| 14 | 2 | orcd 887 | . . . 4 ⊢ (𝜑 → (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁)) |
| 15 | submateqlem2.n | . . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℕ) | |
| 16 | nnuz 12926 | . . . . . 6 ⊢ ℕ = (ℤ≥‘1) | |
| 17 | 15, 16 | eleqtrdi 2870 | . . . . 5 ⊢ (𝜑 → 𝑁 ∈ (ℤ≥‘1)) |
| 18 | fzm1 13662 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘1) → (𝑀 ∈ (1...𝑁) ↔ (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁))) | |
| 19 | 17, 18 | syl 18 | . . . 4 ⊢ (𝜑 → (𝑀 ∈ (1...𝑁) ↔ (𝑀 ∈ (1...(𝑁 − 1)) ∨ 𝑀 = 𝑁))) |
| 20 | 14, 19 | mpbird 260 | . . 3 ⊢ (𝜑 → 𝑀 ∈ (1...𝑁)) |
| 21 | 3 | nnred 12272 | . . . . 5 ⊢ (𝜑 → 𝑀 ∈ ℝ) |
| 22 | 21, 5 | ltned 11370 | . . . 4 ⊢ (𝜑 → 𝑀 ≠ 𝐾) |
| 23 | nelsn 4627 | . . . 4 ⊢ (𝑀 ≠ 𝐾 → ¬ 𝑀 ∈ {𝐾}) | |
| 24 | 22, 23 | syl 18 | . . 3 ⊢ (𝜑 → ¬ 𝑀 ∈ {𝐾}) |
| 25 | 20, 24 | eldifd 3910 | . 2 ⊢ (𝜑 → 𝑀 ∈ ((1...𝑁) ∖ {𝐾})) |
| 26 | 13, 25 | jca 521 | 1 ⊢ (𝜑 → (𝑀 ∈ (1..^𝐾) ∧ 𝑀 ∈ ((1...𝑁) ∖ {𝐾}))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 401 ∨ wo 861 = wceq 1570 ∈ wcel 2145 ≠ wne 2955 ∖ cdif 3896 {csn 4584 class class class wbr 5103 ‘cfv 6533 (class class class)co 7413 1c1 11125 < clt 11267 ≤ cle 11268 − cmin 11465 ℕcn 12257 ℤcz 12615 ℤ≥cuz 12887 ...cfz 13561 ..^cfzo 13709 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-cnex 11180 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7863 df-1st 7986 df-2nd 7987 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-er 8696 df-en 8953 df-dom 8954 df-sdom 8955 df-pnf 11269 df-mnf 11270 df-xr 11271 df-ltxr 11272 df-le 11273 df-sub 11467 df-neg 11468 df-nn 12258 df-n0 12529 df-z 12616 df-uz 12888 df-fz 13562 df-fzo 13710 |
| This theorem is used by: submateq 34319 |
| Copyright terms: Public domain | W3C validator |